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As the seasons change and the average ambient temperature changes, keep in mind that the temperature does change your tire pressure (altitude does, too, but most people don’t change that enough to be a major issue). That’s one reason why they should be checked while cold…as you drive them, the temperature and pressure will rise at about 1#/10F. So, what might have been fine last winter, could be way too high in the middle of summer, thus the recommendation to check them at least once a month unless you live somewhere where the temperature is consistent all year long (not really that many places, plus, they do lose some over time, regardless).
Check and adjust them in your conditioned garage, then go outside and park, and the pressure could be way off from what it should be. The listed pressure is for the vehicle at ambient which could be quite different from where it was last parked and serviced, and, it could be different if parked in the sun on one side versus the other as the black tires will heat up just from that.
The TPMS display can be tweaked to show the internal tire temperature (at least in some MY with coding), and that can help get them where they should be.
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